59 #define inlasm_zarch_sync() __asm__ __volatile__ ("bcr 15, 0" : : : "memory");
  60 
  61 // Release and acquire are empty on z/Architecture, but potential
  62 // optimizations of gcc must be forbidden by OrderAccess::release and
  63 // OrderAccess::acquire.
  64 #define inlasm_zarch_release() inlasm_compiler_barrier()
  65 #define inlasm_zarch_acquire() inlasm_compiler_barrier()
  66 #define inlasm_zarch_fence()   inlasm_zarch_sync()
  67 
  68 inline void OrderAccess::loadload()   { inlasm_compiler_barrier(); }
  69 inline void OrderAccess::storestore() { inlasm_compiler_barrier(); }
  70 inline void OrderAccess::loadstore()  { inlasm_compiler_barrier(); }
  71 inline void OrderAccess::storeload()  { inlasm_zarch_sync(); }
  72 
  73 inline void OrderAccess::acquire()    { inlasm_zarch_acquire(); }
  74 inline void OrderAccess::release()    { inlasm_zarch_release(); }
  75 inline void OrderAccess::fence()      { inlasm_zarch_sync(); }
  76 
  77 template<size_t byte_size>
  78 struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>
  79   VALUE_OBJ_CLASS_SPEC
  80 {
  81   template <typename T>
  82   T operator()(const volatile T* p) const { register T t = *p; inlasm_zarch_acquire(); return t; }
  83 };
  84 
  85 #undef inlasm_compiler_barrier
  86 #undef inlasm_zarch_sync
  87 #undef inlasm_zarch_release
  88 #undef inlasm_zarch_acquire
  89 #undef inlasm_zarch_fence
  90 
  91 #endif // OS_CPU_LINUX_S390_VM_ORDERACCESS_LINUX_S390_INLINE_HPP

  59 #define inlasm_zarch_sync() __asm__ __volatile__ ("bcr 15, 0" : : : "memory");
  60 
  61 // Release and acquire are empty on z/Architecture, but potential
  62 // optimizations of gcc must be forbidden by OrderAccess::release and
  63 // OrderAccess::acquire.
  64 #define inlasm_zarch_release() inlasm_compiler_barrier()
  65 #define inlasm_zarch_acquire() inlasm_compiler_barrier()
  66 #define inlasm_zarch_fence()   inlasm_zarch_sync()
  67 
  68 inline void OrderAccess::loadload()   { inlasm_compiler_barrier(); }
  69 inline void OrderAccess::storestore() { inlasm_compiler_barrier(); }
  70 inline void OrderAccess::loadstore()  { inlasm_compiler_barrier(); }
  71 inline void OrderAccess::storeload()  { inlasm_zarch_sync(); }
  72 
  73 inline void OrderAccess::acquire()    { inlasm_zarch_acquire(); }
  74 inline void OrderAccess::release()    { inlasm_zarch_release(); }
  75 inline void OrderAccess::fence()      { inlasm_zarch_sync(); }
  76 
  77 template<size_t byte_size>
  78 struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>

  79 {
  80   template <typename T>
  81   T operator()(const volatile T* p) const { register T t = *p; inlasm_zarch_acquire(); return t; }
  82 };
  83 
  84 #undef inlasm_compiler_barrier
  85 #undef inlasm_zarch_sync
  86 #undef inlasm_zarch_release
  87 #undef inlasm_zarch_acquire
  88 #undef inlasm_zarch_fence
  89 
  90 #endif // OS_CPU_LINUX_S390_VM_ORDERACCESS_LINUX_S390_INLINE_HPP